/*
 * Copyright 2007-2008 Brian Cavalier
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.bc.iterate.view;

import java.util.Iterator;

/**
 * A simple wrapper that allows Arrays to be used as Iterables for
 * the various Iterate methods.
 * 
 * @author Brian Cavalier
 * @see Iterator
 * @see Iterable
 * @see org.bc.iterate.Iterate
 */
public class ComparableView<T> extends AbstractView<T> {
	private Iterator<? extends T> _iter;
	private Comparable<? super T> _test;
	private T _next;

	public ComparableView(Iterable<? extends T> i, Comparable<? super T> t) {
		_iter = i.iterator();
		_test = t;
	}
	
	public boolean hasNext() {
		findNext();
		return _next != null;
	}
	
	@SuppressWarnings({"IteratorNextCanNotThrowNoSuchElementException"})
    public T next() {
		return _next;
	}
	
	@SuppressWarnings({"RefusedBequest"})
    public void remove() {
		_iter.remove();
	}
	
	private void findNext() {
		while(_iter.hasNext()) {
			T t = _iter.next();
			if(_test.compareTo(t) == 0) {
				_next = t;
				return;
			}
		}
		_next = null;
	}
}